Lock set with spindle lock

Details Lock set with spindle lock Lock set with spindle lock

Filed on

1989-04-19

Date issued

1990-10-30

Examiner

Moore, Richard E.

Patent Class

Closure fasteners

SubClass

Latch-spindle catches

Other Related Categories

E05C 2100

Type

Patent

Status

active

Patent number

049663992

Description

ABSTRACT:
A cylindrical lock comprising two limit plates, whose movement can control the outside knob and the inside knob both unturnable or the outside knob unturnable but the inside knob turnable.

REFERENCES:
patent: 3035432 (1962-05-01), De Vines
patent: 3556576 (1971-01-01), Nelson et al.

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