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US2942907A
(en)
|
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Magnetic latching mechanism
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US4982587A
(en)
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Electronically self-latching cylinder lock
|
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US350678A
(en)
|
|
John e |
|
US3011163A
(en)
|
|
Burglar alarm
|
|
US3439948A
(en)
|
|
Door latch assembly
|
|
BE411643A
(enExample)
|
|
|
|
US3129968A
(en)
|
|
Latches and locks
|
|
US1916848A
(en)
|
|
Concealed refrigerator lock
|
|
US3585625A
(en)
|
|
Combined door lock and alarm
|
|
GB905784A
(en)
|
|
Electric switch and enclosure therefor
|
|
US2838747A
(en)
|
|
Door-alarm
|
|
US3427608A
(en)
|
|
Portable burglar alarm
|
|
US956580A
(en)
|
|
Lock-alarm.
|
|
US2730970A
(en)
|
|
Protective device for door locks
|
|
US1525135A
(en)
|
|
Latch
|
|
US2322815A
(en)
|
|
Combined lock and alarm for windows and the like
|
|
CN1298054A
(zh)
|
|
门用锁手柄装置
|
|
US1560883A
(en)
|
|
Electric switch
|
|
JPH0610545A
(ja)
|
|
扉用電気錠装置
|
|
US1968568A
(en)
|
|
Electric switch
|
|
KR970002197Y1
(ko)
|
|
자동차용 도어록장치의 소음방지 구조
|
|
US1247825A
(en)
|
|
Moisture and gas proof telephone-case.
|
|
US1556282A
(en)
|
|
Circuit closer
|
|
CN112133048A
(zh)
|
|
电缆沟渠防入侵报警系统
|
|
US986962A
(en)
|
|
Signal-lock.
|