Assignee

MASON DAVID R

2 granted patents·21 citations·filing 1976–1979

Technology mixA01D1 A47C1 B63B1 Y10S1

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2 records

0163US4045834ABack-rest attachmentMASON DAVID R·Filed 1976·Granted Sep 6, 1977·17 cites·1 claims
0232US4266319AApparatus for facilitating attachment of a bag to a lawnmowerMASON DAVID R·Filed 1979·Granted May 12, 1981·4 cites·8 claims

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