FR655473A
(en )
1929-04-19
Improvements to children's chairs
FR626837A
(en )
1927-09-20
Improvements to plows and in particular to those harnessed to tractors
CH154950A
(en )
1932-05-31
Ladies' and children's napkins.
FR585940A
(en )
1925-03-12
Improvements to gemstone assemblies and other ornamental stones
FR572351A
(en )
1924-06-04
Improvements made to plows and in particular to plow cutters
FR708738A
(en )
1931-07-28
Improvements to rotary pumps and in particular to harvest pumps
FR596995A
(en )
1925-11-05
Improvement in the age and front of a plow
FR709014A
(en )
1931-08-01
Improvements to cultivators and harrows
FR704322A
(en )
1931-05-18
Improvements to vehicles and in particular to tracked vehicles or similar
FR641580A
(en )
1928-08-07
Improvements in obtaining and recovering methyl oxide
FR620518A
(en )
1927-04-25
Improvements made to the construction of metal vehicle hulls, in particular those of airplanes and hydro-airplanes
FR607013A
(en )
1926-06-24
Improvements to coupling modes in telephone amplifiers and the like
FR545678A
(en )
1922-10-18
Improvements in the construction of aircraft wings and similar devices
FR617301A
(en )
1927-02-17
Improvement in the establishment of freewheel catches
FR621098A
(en )
1927-05-04
Improvements in training organs
FR652584A
(en )
1929-03-11
Improvements made in the construction and arrangement of drain plows
FR717001A
(en )
1931-12-31
Improvements to irradiation devices, in particular therapeutic irradiation
FR647448A
(en )
1928-11-23
Improvements to dobby and in particular to those of the nuyts and similar genres
FR679656A
(en )
1930-04-16
Improvements to combined addition and printing punches
FR679331A
(en )
1930-04-11
Perfected machine designed to loosen and thin the skin
FR563080A
(en )
1923-11-26
Improvement in armor mechanics and jacquard mechanics
FR660695A
(en )
1929-07-16
Improvements in amplification
FR715384A
(en )
1931-12-02
Improvements to vehicles and in particular to cultivation tractors
FR647495A
(en )
1928-11-24
Improvements made to the so-called <tricot> fabric and to the articles made using this fabric
FR596971A
(en )
1925-11-05
Comb destroying and collecting weeds