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PREPARING SNOW SURFACE FOR SKIING AND OTHER SNOW SPORTS
US 3,496,843 A
Filed
: 04/29/1968
Issued
: 02/24/1970
Est. Priority Date
: 04/29/1968
Status: Expired due to Term
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Current Assignee
Otto H. Wallingford
Original Assignee
Otto H. Wallingford
Inventors
Wallingford, Otto H.
Application Number
US04/725,060
Time in Patent Office
666 Days
Field of Search
US Class Current
404/75
CPC Class Codes
E01H 4/02
for sporting purposes, e.g....
E01H 5/12
Apparatus or implements spe...
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