GR1400B
(en )
1927-01-14
METHOD AND MACHINE INTENDED IN RECORDED PRESSURES AND ESPECIALLY IN NAVAL SOUNDER.
SU19417A1
(en )
1931-02-28
The method of processing gramophone needles
GR1637B
(en )
1927-10-15
PERFECTIONS ARE INVENTED IN PROVISIONS FOR SCRATING LEADS AND SIMILAR.
ES92469A1
(en )
1925-05-16
Improvements in talking machines and the like.
DK32882C
(en )
1924-02-25
Recording Speedometers, in particular for Automobiles and the like.
ES86584A1
(en )
1923-11-01
Improvements in talking machines and the like.
ES100203A3
(en )
1927-01-16
Improvements in gramophones and similar talking machines.
ES100204A1
(en )
1927-01-16
Improvements in gramophones and similar talking machines.
DK38094C
(en )
1927-10-31
Speed indicator for Kraftvogne and the like.
ES103840A1
(en )
1927-09-01
Perfeccionamientos in machines for sewing espadrilles and similar espadrilles.
GR1103B
(en )
1926-01-25
PORTABLE MECHANICAL TELEPHONE AND TELEPHONE RESPONSE MACHINE.
ES99792A1
(en )
1926-12-01
Improvements in diaphragms for talking machines and the like.
ES84736A1
(en )
1923-06-01
Improvements in talking machines and similar acoustic devices.
ES82576A1
(en )
1923-02-16
Improvements in talking machines or similar devices.
ES82609A2
(en )
1923-05-01
Improvements in talking machines or similar devices.
ES97716A1
(en )
1926-06-16
Improvements in talking machines.
DK36305C
(en )
1926-08-02
Drive device for engine locomotives and the like.
ES94474A1
(en )
1925-11-01
Improvements in phonographs.
GR303B
(en )
1922-07-31
MAGNETIC MATERIALS AND THEIR USE IN SEMATOGRAPHIC SYSTEMS.
ES77728A1
(en )
1921-07-01
Improvements in hydraulic apparatus and procedures.
GR1240B
(en )
1926-07-19
METHOD AND APPLIANCE FOR WOOD REFINERATION.
GR1648B
(en )
1927-10-22
IMPROVEMENTS IN WIRELESS TELEPHONE AND TELEPHONE.
ES81855A1
(en )
1922-11-16
Improvements in mechanical lathes and similar machines.
FR639080A
(en )
1928-06-13
Further training in talking machines
ES92652A1
(en )
1925-06-01
Improvements in vibrating machines.