GB869234A
(en )
1961-05-31
Transducer and vibratory diaphragm
GB619640A
(enExample )
1900-01-01
GB571870A
(en )
1945-09-12
Improvements relating to unidirectional microphones
GB190406655A
(en )
1905-01-19
Improvements in Phonographs and the like.
GB191217150A
(en )
1912-09-26
Improvements in or relating to Teats for Feeding Bottles or the like.
GB301638A
(en )
1928-12-06
Improvements in or relating to loud speakers
GB190907271A
(en )
1910-03-24
Improvements in and relating to Reducing Valves.
TWD235487S
(zh )
2024-12-11
豆漿機
TWD227956S
(zh )
2023-10-11
聲音播放器
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
Ludford
1953
Bacteriophage types of Shigella sonnei in Queensland.
TWD234571S
(zh )
2024-11-01
墨鏡
TWD234572S
(zh )
2024-11-01
墨鏡
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
GB348198A
(en )
1931-05-14
Improvements in or relating to sound reproducing devices
GB345860A
(en )
1931-04-02
A sound producing instrument
GB183029A
(en )
1922-07-20
Improvements in or relating to gramophone soundboxes
GB190820333A
(en )
1909-05-06
A New or Improved Ointment for Human Use.
GB467733A
(en )
1937-06-14
Improvements in or relating to respiratory appliances
JPS57188196A
(en )
1982-11-19
Speaker system
JP1772677S
(ja )
2024-06-10
電子聴診器
GB734711A
(en )
1955-08-03
Improvements in or relating to broad band high frequency thermionic valve circuits