Nova Patents
US957221A

Hand for comptometers.

Abstract

This record has no abstract on file.

Term

Term ended

Expired 10 May 1927, 99.4 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

Every citation, both ways

Citations
DocumentRelationOfficeCited during
US4135074ACited byUnited States of AmericaSearch report
DE1097455BCited byGermanySearch report
US2906335ACited byUnited States of AmericaSearch report
US2588190ACited byUnited States of AmericaSearch report
DE1092042BCited byGermanySearch report
US2535178ACited byUnited States of AmericaSearch report
US3017076ACited byUnited States of AmericaSearch report
US2516014ACited byUnited States of AmericaSearch report