NL2305C - - Google Patents Info Publication number NL2305C NL2305C NL2305DA NL2305C NL 2305 C NL2305 C NL 2305C NL 2305D A NL2305D A NL 2305DA NL 2305 C NL2305 C NL 2305C 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.) 1911-05-25 Publication of NL2305C publication Critical patent/NL2305C/xx Links Espacenet Global Dossier Discuss Classifications H—ELECTRICITY H04—ELECTRIC COMMUNICATION TECHNIQUE H04M—TELEPHONIC COMMUNICATION H04M3/00—Automatic or semi-automatic exchanges H04M3/40—Applications of speech amplifiers Landscapes Engineering & Computer Science (AREA) Signal Processing (AREA) Interconnected Communication Systems, Intercoms, And Interphones (AREA) NL2305D 1911-05-25 NL2305C (cg-RX-API-DMAC7.html) Applications Claiming Priority (1) Application Number Priority Date Filing Date Title US443965XA 1911-05-25 1911-05-25 Publications (1) Publication Number Publication Date NL2305C true NL2305C (cg-RX-API-DMAC7.html) Family ID=6012975 Family Applications (1) Application Number Title Priority Date Filing Date NL2305D NL2305C (cg-RX-API-DMAC7.html) 1911-05-25 Country Status (3) Country Link DE (1) DE272989C (cg-RX-API-DMAC7.html) FR (2) FR443965A (cg-RX-API-DMAC7.html) NL (1) NL2305C (cg-RX-API-DMAC7.html) 0 FR FR17177A patent/FR17177E/fr not_active Expired NL NL2305D patent/NL2305C/xx active DE DENDAT272989D patent/DE272989C/de active Active 1912 1912-05-18 FR FR443965A patent/FR443965A/fr not_active Expired Also Published As Publication number Publication date FR443965A (fr) 1912-10-07 FR17177E (fr) 1913-07-03 DE272989C (cg-RX-API-DMAC7.html) Similar Documents Publication Publication Date Title FR443699A (cg-RX-API-DMAC7.html) FR16961E (cg-RX-API-DMAC7.html) FR435823A (cg-RX-API-DMAC7.html) 1912-03-11 FR441184A (cg-RX-API-DMAC7.html) CH52549A (cg-RX-API-DMAC7.html) GB191101394A (cg-RX-API-DMAC7.html) FR441165A (cg-RX-API-DMAC7.html) FR14678E (cg-RX-API-DMAC7.html) CH52627A (cg-RX-API-DMAC7.html) CH52579A (cg-RX-API-DMAC7.html) CH52511A (cg-RX-API-DMAC7.html) GB23265A (cg-RX-API-DMAC7.html) CH52610A (cg-RX-API-DMAC7.html) FR16507A (cg-RX-API-DMAC7.html) FR447293A (cg-RX-API-DMAC7.html) GB191115716A (cg-RX-API-DMAC7.html) GB191114659A (cg-RX-API-DMAC7.html) DE247028C (cg-RX-API-DMAC7.html) 1912-05-17 FR13813A (cg-RX-API-DMAC7.html) FR441153A (cg-RX-API-DMAC7.html) FR15055A (cg-RX-API-DMAC7.html) FR15237A (cg-RX-API-DMAC7.html) FR16032A (cg-RX-API-DMAC7.html) FR441147A (cg-RX-API-DMAC7.html) FR434390A (cg-RX-API-DMAC7.html)