GB621755A - - Google Patents

Info

Publication number
GB621755A
GB621755A GB621755DA GB621755A GB 621755 A GB621755 A GB 621755A GB 621755D A GB621755D A GB 621755DA GB 621755 A GB621755 A GB 621755A
Authority
GB
United Kingdom
Prior art keywords
disc
discs
numeral
racks
steps
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
Other languages
English (en)
Publication of GB621755A publication Critical patent/GB621755A/en
Active legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices With Unspecified Measuring Means (AREA)
GB621755D Active GB621755A (enExample)

Publications (1)

Publication Number Publication Date
GB621755A true GB621755A (enExample)

Family

ID=1749645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB621755D Active GB621755A (enExample)

Country Status (1)

Country Link
GB (1) GB621755A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644638A (en) * 1953-07-07 Broido

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644638A (en) * 1953-07-07 Broido

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