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Deep furrow drill shovel
US 2,779,263 A
Filed
: 10/15/1953
Issued
: 01/29/1957
Est. Priority Date
: 10/15/1953
Status: Expired due to Term
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Current Assignee
Arthur Franz Harold
,
Melvin Franz Earl
,
William Franz Herbert
Original Assignee
Arthur Franz Harold
,
Melvin Franz Earl
,
William Franz Herbert
Inventors
ARTHUR FRANZ HAROLD
,
WILLIAM FRANZ HERBERT
,
MELVIN FRANZ EARL
Application Number
US03/386,198
Time in Patent Office
1,202 Days
Field of Search
US Class Current
172/724
CPC Class Codes
A01C 5/062
Devices for making drills o...
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