Document (#15664)

Author

Herbig, E.

Title

¬Die Internationale Patentklassifikation

Source

Kooperation in der Klassifikation I. Proc. der Sekt.1-3 der 2. Fachtagung der Gesellschaft für Klassifikation, Frankfurt-Hoechst, 6.-7.4.1978. Bearb.: W. Dahlberg

Imprint

Frankfurt : Gesellschaft für Klassifikation

Year

1978

Pages

S.72-95

Series

Studien zur Klassifikation; Bd.2

Field

Patentinformation

Object

IPC

Similar documents (content)

1. Internationale Patentklassifikation (1974 ff.) 2.70

   2.7007358 = sum of:
     2.7007358 = product of:
       5.4014716 = sum of:
         5.4014716 = weight(title_txt:patentklassifikation in 967) [ClassicSimilarity], result of:
           5.4014716 = score(doc=967,freq=1.0), product of:
             0.8986122 = queryWeight, product of:
               1.4311349 = boost
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.06528779 = queryNorm
             6.010904 = fieldWeight in 967, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.625 = fieldNorm(doc=967)
       0.5 = coord(1/2)
   

2. Gesell, J.: Neuauflage der Internationalen Patentklassifikation : incompatibility issues of library classification systems and subject headings in subject cataloguing (1986) 2.39

   2.3909342 = sum of:
     2.3909342 = sum of:
       0.23034583 = weight(abstract_txt:internationale in 2644) [ClassicSimilarity], result of:
         0.23034583 = score(doc=2644,freq=1.0), product of:
           0.43874398 = queryWeight, product of:
             6.7201533 = idf(docFreq=144, maxDocs=44218)
             0.06528779 = queryNorm
           0.52501196 = fieldWeight in 2644, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             6.7201533 = idf(docFreq=144, maxDocs=44218)
             0.078125 = fieldNorm(doc=2644)
       2.1605885 = weight(title_txt:patentklassifikation in 2644) [ClassicSimilarity], result of:
         2.1605885 = score(doc=2644,freq=1.0), product of:
           0.8986122 = queryWeight, product of:
             1.4311349 = boost
             9.617446 = idf(docFreq=7, maxDocs=44218)
             0.06528779 = queryNorm
           2.4043615 = fieldWeight in 2644, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.617446 = idf(docFreq=7, maxDocs=44218)
             0.25 = fieldNorm(doc=2644)
   

3. Internationale Patentklassifikation : Gesamtwerk (2001) 2.16

   2.1605885 = sum of:
     2.1605885 = product of:
       4.321177 = sum of:
         4.321177 = weight(title_txt:patentklassifikation in 4975) [ClassicSimilarity], result of:
           4.321177 = score(doc=4975,freq=1.0), product of:
             0.8986122 = queryWeight, product of:
               1.4311349 = boost
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.06528779 = queryNorm
             4.808723 = fieldWeight in 4975, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.5 = fieldNorm(doc=4975)
       0.5 = coord(1/2)
   

4. Einführung in die Handhabung der Internationalen Patentklassifikation (1977) 1.62

   1.6204413 = sum of:
     1.6204413 = product of:
       3.2408826 = sum of:
         3.2408826 = weight(title_txt:patentklassifikation in 1411) [ClassicSimilarity], result of:
           3.2408826 = score(doc=1411,freq=1.0), product of:
             0.8986122 = queryWeight, product of:
               1.4311349 = boost
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.06528779 = queryNorm
             3.606542 = fieldWeight in 1411, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.375 = fieldNorm(doc=1411)
       0.5 = coord(1/2)
   

5. Schiffels, R.: Kategorien der Internationalen Patentklassifikation, insbesondere hinsichtlich der Einordnung von Produkten (1982) 1.35

   1.3503679 = sum of:
     1.3503679 = product of:
       2.7007358 = sum of:
         2.7007358 = weight(title_txt:patentklassifikation in 7701) [ClassicSimilarity], result of:
           2.7007358 = score(doc=7701,freq=1.0), product of:
             0.8986122 = queryWeight, product of:
               1.4311349 = boost
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.06528779 = queryNorm
             3.005452 = fieldWeight in 7701, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.3125 = fieldNorm(doc=7701)
       0.5 = coord(1/2)