FR539822A -
New device for forming a network of threads which can be combined directly with paper, or any material previously prepared for this purpose, generally with the aim of increasing its strength
- Google Patents
New device for forming a network of threads which can be combined directly with paper, or any material previously prepared for this purpose, generally with the aim of increasing its strength
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D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
FR539822D1921-04-021921-04-02
New device for forming a network of threads which can be combined directly with paper, or any material previously prepared for this purpose, generally with the aim of increasing its strength
ExpiredFR539822A
(en)
New device for forming a network of threads which can be combined directly with paper, or any material previously prepared for this purpose, generally with the aim of increasing its strength
New device for forming a network of threads which can be combined directly with paper, or any material previously prepared for this purpose, generally with the aim of increasing its strength