What kind  Manufacturer one have a Laps more smaller than 20 and Grid 21
Rider Manufacturer Laps Time/Retired Grid
2008 Qatar motorcycle Grand Prix
16175675
text text real text real
2-16175675-2
250cc classification
250cc classification
Mattia Pasini Aprilia 20 40:16.202 5
Hector Barbera Aprilia 20 +0.557 2
Mika Kallio KTM 20 +1.029 4
Alex Debon Aprilia 20 +1.418 1
Yuki Takahashi Honda 20 +12.944 7
Alvaro Bautista Aprilia 20 +14.480 3
Karel Abraham Aprilia 20 +16.721 11
Roberto Locatelli Gilera 20 +18.987 9
Aleix Espargaro Aprilia 20 +32.232 8
Hector Faubel Aprilia 20 +41.102 15
Julian Simon KTM 20 +41.457 14
Fabrizio Lai Gilera 20 +41.694 13
Ratthapark Wilairot Honda 20 +43.192 19
Manuel Poggiali Gilera 20 +44.228 18
Thomas Luthi Aprilia 20 +48.760 10
Hiroshi Aoyama KTM 20 +1:11.031 12
Doni Tata Pradita Yamaha 20 +2:05.461 23
Alex Baldolini Aprilia 14 Retirement 17
Lukas Pesek Aprilia 12 Retirement 16
Marco Simoncelli Gilera 7 Retirement 6
Imre Toth Aprilia 4 Retirement 22
Manuel Hernandez Aprilia 0 Retirement 21
Eugene Laverty Aprilia 0 Retirement 20
SELECT Manufacturer FROM table WHERE Laps < 20 AND Grid = 21
20 21