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公开(公告)号:US2310204A
公开(公告)日:1943-02-09
申请号:US35663840
申请日:1940-09-13
Applicant: BECKWITH MFG CO
Inventor: BECKWITH EDWIN L , MACIVER CHARLES P
IPC: F41B13/04
CPC classification number: F41B13/04
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公开(公告)号:US2260713A
公开(公告)日:1941-10-28
申请号:US35759740
申请日:1940-09-20
Applicant: BECKWITH MFG CO
Inventor: HEATON WALTER H
IPC: A43B23/08
CPC classification number: A43B23/087 , A43B1/0072 , Y10S36/02
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公开(公告)号:US2249760A
公开(公告)日:1941-07-22
申请号:US24923439
申请日:1939-01-04
Applicant: BECKWITH MFG CO
Inventor: HARRISON RAYMOND B , ALLEY LYMAN E
IPC: A43D11/14
CPC classification number: A43D11/14
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公开(公告)号:US2186589A
公开(公告)日:1940-01-09
申请号:US14484337
申请日:1937-05-26
Applicant: BECKWITH MFG CO
Inventor: LOVELL STANLEY P
IPC: A43B23/08
CPC classification number: A43B23/081
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公开(公告)号:US1978954A
公开(公告)日:1934-10-30
申请号:US52279431
申请日:1931-03-14
Applicant: BECKWITH MFG CO
Inventor: MILLER HAROLD S
IPC: A43B23/08
CPC classification number: A43B23/086 , Y10T442/174 , Y10T442/2361 , Y10T442/2369
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公开(公告)号:US1945173A
公开(公告)日:1934-01-30
申请号:US62503232
申请日:1932-07-27
Applicant: BECKWITH MFG CO
Inventor: WOODRUFF FRANK O
CPC classification number: D21H13/34 , D06N3/10 , D21H5/1209 , D21H17/35 , D21H27/30
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公开(公告)号:US1926765A
公开(公告)日:1933-09-12
申请号:US44252230
申请日:1930-04-08
Applicant: BECKWITH MFG CO
Inventor: EAGER FREDERICK W
IPC: A43B13/42
CPC classification number: A43B13/42
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公开(公告)号:US1840603A
公开(公告)日:1932-01-12
申请号:US3257625
申请日:1925-05-25
Applicant: BECKWITH MFG CO
Inventor: BEACH PRATT WILLIAM
IPC: A43B23/08
CPC classification number: A43B23/086
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公开(公告)号:US1831689A
公开(公告)日:1931-11-10
申请号:US3524725
申请日:1925-06-05
Applicant: BECKWITH MFG CO
Inventor: SWETT CHARLES E
IPC: A43B23/08
CPC classification number: A43B23/086 , Y10T428/31801 , Y10T428/31815 , Y10T442/2098 , Y10T442/2361
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公开(公告)号:US1739578A
公开(公告)日:1929-12-17
申请号:US66222323
申请日:1923-09-12
Applicant: BECKWITH MFG CO
Inventor: CLAPP ALBERT L
IPC: A43B23/08
CPC classification number: A43B23/086 , Y10T442/2361
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