Unknown F1 sponsors collage with questions part 4

1.In which company owner with city headquarters comes Maur Baldi's and Pierluigi Martini's sponsor in Jeb's helmet called Corin ?
2.In which aviation comes probably called logo sticker Fly Formula One from Henri Pescarolo Surtees TS during French gp 1976?
3.It this true after Koni and before Goodyear Leyton House-March CG911 dislayed Marriott in white rectangle during Australian GP 1991?
4.It this true Brazilian sponsor from Minardi M188 during Brazilian Gp 1988 is DGD , DGO OR DGA and in which company and city headquarters comes?
5.It this true Michele Alboreto's white square displayed FAN SOS in Minardi M193B during Monaco-Canadian GP 1994 and in which company or organisation owner with city headquarters comes ?
6.What fully called Oak logo sponsor displayed in left arm of Jan Lammers racesuit during 1980 season with Ensign and ATS?
7.It this true Pierluigi Martini's helmet sponsor during Italian GP 1984 is 3GB or 3G3?
8.In which company owner comes probably called NIN and Real from Jordan Peugeot 195?
9.What Called white square sponsor displayed after Raid and before Albini & Fontanot from life F190 during Monaco GP 1990?
10.What called black rectangle sponsor displayed upper after blue stripe and before red circle from Andrea Montermini's helmet during 1996 F1 season with Forti?
11.It this true in Forti FG03 during Canadian GP 1996 displayed Okane Bar Sushi in white background ?
12.It this true Rich brand is a boutique store and Fiora is a meat brand from Forti FG01B during Australian GP 1996?
13.It this true Ronnie Peterson's helmet sponsor Grabber during 1975 F1 season is a Kappahl brand ?
14.What called unknown sponsor displayed after Gotti and before Champion USA from Eddie Cheever driven Osella during West US GP 1980 at Los Angeles-Long Beach CA?
15.What called unknown Courtaulds brand with red circle displayed three times from Tyrrell during US Gp 1988 at Detroit MI?
16.What Called white circle logo displayed after Mobilfer before replaced by Ultom (Japanese-Australian gp) of Osella FA1L during 1988 F1 season ?
17.It this true displayed under after Magneti Marelli in rear wing of Surtees TS20 exclusively during British GP 1978 is Hermetite?
18.It this true Blue spot logo in RAM 02 during West GP 1984 at Dallas TX is Kroger?
and somebody have own race photos sponsor company photos , advertisements or