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W H MINER Inc
W H MINER
Active Patents
0
Total Holdings
3
Patent Holdings
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Patent No.
Title
Status
Filing Date
Grant Date
Claims
Actions
US3369802A
Adjustable damped spring
Expired / Lapsed
1966-02-02
1968-02-20
2
Details
US1688649A
Shock absorber
Expired / Lapsed
1926-07-15
1928-10-23
0
Details
US1508118A
Friction shock-absorbing mechanism
Expired / Lapsed
1921-09-08
1924-09-09
0
Details