NL4053C - - Google Patents Info Publication number NL4053C NL4053C NL4053DA NL4053C NL 4053 C NL4053 C NL 4053C NL 4053D A NL4053D A NL 4053DA NL 4053 C NL4053 C NL 4053C Authority NL Netherlands Application number Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 1915-03-17 Publication of NL4053C publication Critical patent/NL4053C/xx Links Espacenet Global Dossier Discuss Classifications H—ELECTRICITY H04—ELECTRIC COMMUNICATION TECHNIQUE H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00 H04R23/002—Transducers other than those covered by groups H04R9/00 - H04R21/00 using electrothermic-effect transducer Landscapes Physics & Mathematics (AREA) Engineering & Computer Science (AREA) Acoustics & Sound (AREA) Signal Processing (AREA) Details Of Audible-Bandwidth Transducers (AREA) Telephone Set Structure (AREA) NL4053D 1915-03-17 NL4053C (cg-RX-API-DMAC7.html) Applications Claiming Priority (1) Application Number Priority Date Filing Date Title DE191505846X 1915-03-17 Publications (1) Publication Number Publication Date NL4053C true NL4053C (cg-RX-API-DMAC7.html) Family ID=32668501 Family Applications (1) Application Number Title Priority Date Filing Date NL4053D NL4053C (cg-RX-API-DMAC7.html) 1915-03-17 Country Status (3) Country Link DE (1) DE297449C (cg-RX-API-DMAC7.html) GB (1) GB191505846A (cg-RX-API-DMAC7.html) NL (1) NL4053C (cg-RX-API-DMAC7.html) 0 NL NL4053D patent/NL4053C/xx active DE DENDAT297449D patent/DE297449C/de active Active 1915 1915-04-19 GB GB191505846D patent/GB191505846A/en not_active Expired Also Published As Publication number Publication date DE297449C (cg-RX-API-DMAC7.html) GB191505846A (en) 1916-04-19 Similar Documents Publication Publication Date Title FR480381A (cg-RX-API-DMAC7.html) NL1818C (cg-RX-API-DMAC7.html) 1915-08-02 FR541202A (cg-RX-API-DMAC7.html) 1922-07-25 FR492151A (cg-RX-API-DMAC7.html) 1919-07-01 FR480316A (cg-RX-API-DMAC7.html) FR480329A (cg-RX-API-DMAC7.html) GB191500478A (cg-RX-API-DMAC7.html) GB100265A (cg-RX-API-DMAC7.html) GB100299A (cg-RX-API-DMAC7.html) FR20359A (cg-RX-API-DMAC7.html) FR492052A (cg-RX-API-DMAC7.html) FR492192A (cg-RX-API-DMAC7.html) 1919-07-01 FR477312A (cg-RX-API-DMAC7.html) FR492188A (cg-RX-API-DMAC7.html) 1919-07-01 FR20340A (cg-RX-API-DMAC7.html) FR23382E (cg-RX-API-DMAC7.html) 1921-11-16 DE293163C (cg-RX-API-DMAC7.html) 1916-07-15 FR492014A (cg-RX-API-DMAC7.html) FR492047A (cg-RX-API-DMAC7.html) GB191503194A (cg-RX-API-DMAC7.html) FR477330A (cg-RX-API-DMAC7.html) 1915-10-13 FR480345A (cg-RX-API-DMAC7.html) FR492189A (cg-RX-API-DMAC7.html) 1919-07-01 FR20821E (cg-RX-API-DMAC7.html) FR477338A (cg-RX-API-DMAC7.html)