GB657354A
(show.php )
1900-01-01
GB619640A
(show.php )
1900-01-01
GB191516204A
(en )
1916-08-24
Improvements in Reducing Valves particularly adapted for use in connection with Breathing Apparatus.
GB571870A
(en )
1945-09-12
Improvements relating to unidirectional microphones
GB190406655A
(en )
1905-01-19
Improvements in Phonographs and the like.
TWD237184S
(zh )
2025-03-21
淨水器
GB191217150A
(en )
1912-09-26
Improvements in or relating to Teats for Feeding Bottles or the like.
GB190907271A
(en )
1910-03-24
Improvements in and relating to Reducing Valves.
TWD227956S
(zh )
2023-10-11
聲音播放器
TWD240722S
(zh )
2025-10-01
空氣清淨機
GB738283A
(en )
1955-10-12
Improvements in or relating to valve arrangements for use in resuscitation and in anaesthesia
UTSUMI et al.
1982
On the anti-Streptococcus protein (APS) in the digestive juice of silkworm larvae, Bombyx mori
GB190420789A
(en )
1905-09-07
Improvements in Automatic Musical Instruments.
GB306709A
(en )
1929-02-28
Improvements in, or relating to, pneumatically operated player mechanism for musicalinstruments
Cheuk
1958
The individual amino acid requirements of certain soil microorganisms
GB485557A
(en )
1938-05-19
Improvements in or relating to the recording or transmission of sound by electrical means
GB348198A
(en )
1931-05-14
Improvements in or relating to sound reproducing devices
GB259326A
(en )
1926-10-14
Improvements in or relating to sound detecting devices
GB345860A
(en )
1931-04-02
A sound producing instrument
GB191121424A
(en )
1912-08-08
An Improved Milking Machine.
GB542358A
(en )
1942-01-06
Bipolar electrolysers
GB191009769A
(en )
1911-04-21
An Improved Intercooler for use in connection with Compressors of Air and other Gases.
GB248497A
(en )
1926-03-11
Improvements in and relating to diaphragms for sound boxes
GB726220A
(en )
1955-03-16
Improvements in or relating to sound producing devices
GB734711A
(en )
1955-08-03
Improvements in or relating to broad band high frequency thermionic valve circuits