IE14808L
(en )
1937-10-03
Opening and closing ventilators etc.
AU104729B2
(en )
1938-08-18
An improved means for opening and closing gates and the like
AU527937A
(en )
1938-08-18
An improved means for opening and closing gates and the like
CA368279A
(en )
1937-08-24
Circuit opening and closing device
CA368280A
(en )
1937-08-24
Circuit opening and closing device
FR835210A
(en )
1938-12-15
Door enhancements and the like
AU106166B2
(en )
1938-12-22
Improvements in devices for opening and closing ventilators, doors and windows
AU531837A
(en )
1938-12-22
Improvements in devices for opening and closing ventilators, doors and windows
CA368449A
(en )
1937-08-31
Window and closure
AU100312B2
(en )
1937-03-04
Gravitational self opening and closing gate
CA365708A
(en )
1937-04-27
Closure and weatherstrip
CA319196A
(en )
1932-01-26
Door opening and closing device
CA369454A
(en )
1937-10-26
Closed car ventilation
CA370657A
(en )
1937-12-21
Hinged ventilator
AU59436A
(en )
1937-03-04
Gravitational self opening and closing gate
CA370577A
(en )
1937-12-14
Door closing mechanism
CA348999A
(en )
1935-03-19
Door closing and checking device
AU2479735A
(en )
1936-10-15
Improvements in means for opening and closing doors
CA333852A
(en )
1933-07-11
Valve opening and closing device
CA369322A
(en )
1937-10-12
Draftless ventilator
CA363762A
(en )
1937-01-26
Ventilator
CA364230A
(en )
1937-02-16
Ventilator
AU107941B2
(en )
1939-07-20
Apparatus for opening and closing doors
CA371404A
(en )
1938-01-25
Furnace door closure
CA359970A
(en )
1936-08-18
Double door opening device